+++ /dev/null
-/* Copyright (c) 2010-2017. The SimGrid Team. All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "xbt/str.h"
-#include "xbt/sysdep.h"
-#include <simgrid/s4u.hpp>
-#include <string>
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_app_masterworker, "Messages specific for this s4u example");
-
-class Master {
- long number_of_tasks = 0; /* - Number of tasks */
- double comp_size = 0; /* - Task compute cost */
- double comm_size = 0; /* - Task communication size */
- long workers_count = 0; /* - Number of workers */
- simgrid::s4u::MailboxPtr mailbox = nullptr;
-
-public:
- explicit Master(std::vector<std::string> args)
- {
- xbt_assert(args.size() == 5, "The master function expects 4 arguments from the XML deployment file");
-
- number_of_tasks = std::stol(args[1]);
- comp_size = std::stod(args[2]);
- comm_size = std::stod(args[3]);
- workers_count = std::stol(args[4]);
-
- XBT_INFO("Got %ld workers and %ld tasks to process", workers_count, number_of_tasks);
- }
-
- void operator()()
- {
- for (int i = 0; i < number_of_tasks; i++) { /* For each task to be executed: */
- /* - Select a @ref worker in a round-robin way */
- mailbox = simgrid::s4u::Mailbox::byName(std::string("worker-") + std::to_string(i % workers_count));
-
- if (number_of_tasks < 10000 || i % 10000 == 0)
- XBT_INFO("Sending \"%s\" (of %ld) to mailbox \"%s\"", (std::string("Task_") + std::to_string(i)).c_str(),
- number_of_tasks, mailbox->getName());
-
- /* - Send the computation amount to the @ref worker */
- mailbox->put(new double(comp_size), comm_size);
- }
-
- XBT_INFO("All tasks have been dispatched. Let's tell everybody the computation is over.");
- for (int i = 0; i < workers_count; i++) {
- /* - Eventually tell all the workers to stop by sending a "finalize" task */
- mailbox = simgrid::s4u::Mailbox::byName(std::string("worker-") + std::to_string(i % workers_count));
- mailbox->put(new double(-1.0), 0);
- }
- }
-};
-
-class Worker {
- long id = -1;
- simgrid::s4u::MailboxPtr mailbox = nullptr;
-
-public:
- explicit Worker(std::vector<std::string> args)
- {
- xbt_assert(args.size() == 2, "The worker expects a single argument from the XML deployment file: "
- "its worker ID (its numerical rank)");
- id = std::stol(args[1]);
- mailbox = simgrid::s4u::Mailbox::byName(std::string("worker-") + std::to_string(id));
- }
-
- void operator()()
- {
- while (1) { /* The worker waits in an infinite loop for tasks sent by the \ref master */
- double* task = static_cast<double*>(mailbox->get());
- xbt_assert(task != nullptr, "mailbox->get() failed");
- double comp_size = *task;
- delete task;
- if (comp_size < 0) { /* - Exit when -1.0 is received */
- XBT_INFO("I'm done. See you!");
- break;
- }
- /* - Otherwise, process the task */
- simgrid::s4u::this_actor::execute(comp_size);
- }
- }
-};
-
-int main(int argc, char* argv[])
-{
- simgrid::s4u::Engine* e = new simgrid::s4u::Engine(&argc, argv);
- xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
- "\tExample: %s msg_platform.xml msg_deployment.xml\n",
- argv[0], argv[0]);
-
- e->loadPlatform(argv[1]); /** - Load the platform description */
- e->registerFunction<Master>("master");
- e->registerFunction<Worker>("worker"); /** - Register the function to be executed by the processes */
- e->loadDeployment(argv[2]); /** - Deploy the application */
-
- e->run(); /** - Run the simulation */
-
- XBT_INFO("Simulation time %g", e->getClock());
-
- delete e;
- return 0;
-}
